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E. MGOAMMON,

' PIANO FORTE, No. 258,455. Patented May 23, 1882.

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PIANO FORTE.

Patented May 23, 1882 w.- Wnhmglom n. c.

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UNITED STATES PATENT OFFICE.

EDWARD MCOAMMON, OF ALBANY, NEW YORK.

PIANO-FORTE.

SPECIFICATION forming part of Letters Patent No. 258,455, dated May 23, 1882.

Application filed December 27, 1881. (No model.)

To all whom it may concern Be it known that I, EDWARD MoOAMMoN, of the city and count-y'of Albany, and State of New York, have invented certain new and useful Improvements in Upright Piano-Fortes,

'of which the following is a specification.

My invention relates to improvements in the casings of upright pianos and the object of my invention is to provide a detachable ornamental casing for the instrument, so as to render the latter lighter to handle, to avoid the danger of scratching or otherwise disfiguring the ornamental external casing while the instrument is being moved, and to reduce the size of the instrument so as to allow it to pass through a narrow space. This object Iattain by means of the construction illustrated in the accompanying drawings, which form part of this specification, and in which Figure l is an end elevation of an upright piano provided with my detachable casing; Fig. 2, the same with one of its end pieces, fronts, and action removed, and the top, keyboard bottom, and pedal-railshown in section; Fig. 3, an end elevation of the inside or body frame stripped of all its detachable parts; Fig. 4, a plan] View with the top, front, and action removed; and Fig. 5, an inverted plan view, showing one of the caster-blocks broken off.

In the accompanying drawings, A designates the inside or body frame of the instrument, which frame, when provided with the usual iron plate, strings, and sounding-board, is known to the trade as an upright back,

/ bellied, B, a detachable top, secured to the frame A by means of screws, and provided with the usual hinged piece or flap, b,- O, detachable end pieces, provided with cheekpieces 0 and caster-blocks c, that are perinanently secured to said end pieces. The end pieces, 0, are secured to theframe A by means of the screws 0 which are covered by the top B and the back fastenings, c, which consist of the ordinary butt-hinge provided with re movable pins 0 or any equivalent separable fastening device. The said end pieces, 0, are provided on their inner sides with recesses adapted to fit snugly upon the dowel-pins a, secured in the frame A, and by this means the end pieces are always restored to and held in their exact positions in respect to the frame A. D, the pedal-rail, secured at both ends to the caster-blocks c by means of the dovetails d, which aid in retaining the lower parts of the end pieces, 0, snugly in place against the frame A; E, the detachable key-board bottom, which is secured to the under edges of the cheek-pieces c by means of the screws 6.

The action, key-board, and fronts of the in-.

strument are made removable, in the usual manner of constructing upright pianos, and for the purposes of this description it must be understood that the parts last named have been removed from the constructions shown in the drawings.

The modus operandi for removing the external casing from the piano is as follows: The instrument is tilted backward to permit the removal of the pedal-rail D and key-board bottom E. Then, after the top B has been removed, the screws 0 are taken out and the pins 0 are removed from the back fastenings, 0 after which the end pieces, 0, with their attached cheek-pieces c and caster-blocks 0, can be drawn off from the dowel-pins, so as to leave the frame A in the condition shown in Fig. 3, stripped of all external ornamentation that is liable to be injured by being scratched or bruised. Atthe same time the instrument is relieved of so much of its weight that it can be handled and carried with comparative case, while the reduction in its size permits the instrument to pass readily through a very narrow opening or passage-way.

I claim as my invention- 1. In an upright piano, the combination, with a body-frame, A, containing the usual iron plate, strings, and sounding-board, of an outer ornamental casing separable from the frame A, substantially as described, and for the purpose set forth.

2. The combination, with the body-frame A for containing the plate, strings, and sounding-board of an upright piano, of an ornamental casing consisting of the end pieces, 0, pedal-rail D, and key-board bottom E, separable from the frame A, essentially as and for the purpose specified.

EDWARD MOOAMMON.

Witnesses:

WILLIAM N. Low, LOUIS A. HIGGINS. 

